MS. CASSANDRA ZIMMERMAN OTR/L
NPI 1417498445
Occupational Therapist in Portland, OR

Active since March 09, 2017Accepts Medicare Assignment
9025 NE FREMONT ST, PORTLAND, OR 97220(303) 907-3678(503) 266-8632 Get Directions Write a Review

NPPES record last updated: July 27, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 27, 2026, Jan 16, 2023, Jan 9, 2023 and 1 more (4 updates tracked since 2023).

About Ms. Cassandra Zimmerman Otr/l NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. CASSANDRA ZIMMERMAN OTR/L (NPI 1417498445) is an individual occupational therapist in Portland, Oregon, licensed in Oregon (472343) and active in the NPI registry since March 2017. She is a graduate of Other (2021).

NPPES Registry Identity

NPI1417498445
Entity TypeIndividualFemale
Primary Taxonomy225X00000X
Provider Legal NameMS. CASSANDRA ZIMMERMANCredential: OTR/L
Location Address9025 NE FREMONT STPortland, OR 97220-5115
Mailing Address9025 Ne Fremont StPortland, OR 97220-5115 · (303) 907-3678 · Fax (503) 266-8632
Fax(503) 266-8632
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateMarch 9, 2017
Last NPPES UpdateJuly 27, 20264 updates tracked since enumeration
NPPES CertifiedJuly 27, 2026
✔ NPI 1417498445 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOccupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225X00000X
License✔ Licensed in OR · 472343
Definition
An occupational therapist is a person who has graduated from an entry-level occupational therapy program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, or approved by the World Federation of Occupational Therapists (WFOT), or an equivalent international occupational therapy education program; has successfully completed a period of supervised fieldwork experience required by the occupational therapy program; has passed a nationally recognized entry-level examination for occupational therapists, and fulfills state requirements for licensure, certification, or registration. An occupational therapist provides interventions based on evaluation and which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapists address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life.
9025 NE FREMONT ST, Portland, OR 97220

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ms. Cassandra Zimmerman Otr/l is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID345718151
PECOS Enrollment IDI20260508003336

Medicare Billing Reassignment

Medicare enrollment records show Cassandra Zimmerman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mental Health
1336 NW FLANDERS ST
Portland, OR 97209
  • Reassigned Medicare billing, Oregon enrollment
  • 6 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Cassandra Zimmerman's NPI number?

The NPI number for Cassandra Zimmerman is 1417498445. It was assigned to this individual provider in the NPPES registry on March 9, 2017.

Where is Cassandra Zimmerman located?

Cassandra Zimmerman practices at 9025 NE Fremont St, Portland, OR 97220. The listed phone number is (303) 907-3678.

What is Cassandra Zimmerman's specialty?

The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.

Is Cassandra Zimmerman enrolled in Medicare?

Yes. Cassandra Zimmerman is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Cassandra Zimmerman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Cassandra Zimmerman reassigns Medicare benefits to Holistic Community Therapy LLC (Portland, OR). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Cassandra Zimmerman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Cassandra Zimmerman accept?

Health plans from BridgeSpan Health Company and Regence BlueCross BlueShield of Oregon list Cassandra Zimmerman as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Cassandra Zimmerman was last updated on July 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.